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Old 03-04-2010, 08:23 AM   #1
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Periodic shutoff

My Lennox Elite periodically shuts off or won't start back up. I have replaced the thermostat. I have it set at 68-70. some mornings I wake up and it is 60 or below and no furnace. If I turn the thermostat down and then back to 68-70 it will turn back on. That is why I started with replacing the thermostat but that wasn't it. Any help would be greatly appreciated.


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Old 03-04-2010, 10:25 AM   #2
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You may want to take a picture on the furnace and also a picture of the control board inside. this may give us a better idea of what you have. Also post the model of the furnce but if you don't know then pics should be good.


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Old 03-04-2010, 03:23 PM   #3
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The control board will flash an error code.
But. You have to go and look at it before you turn the stat down and back up. That rests the code.
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